Sign in on webpage...won't let me sign in with same in app...?

I am trying to sign in to the Wemod app with my credentials I used on the browser and it states that user name and email are already in use. The app populated some user name. I signed up for Pro. What do i need to do?

It sounds like you are trying to create a new account. Make sure you are following the steps here How do I log in to my account? - WeMod Support